The Samsung 9100 Pro 1TB is the objective winner of this comparison, securing victories in four out of seven evaluated specifications. Its most significant advantage is its sequential read speed, which outperforms the alternative by 97 percent. This substantial lead in data retrieval efficiency makes the 9100 Pro the superior choice for users prioritizing raw performance and rapid access times within their storage configuration.

Users who require maximum storage space should select the Samsung 990 Pro 2TB, as it offers a 100 percent advantage in capacity. Conversely, those who do not need the extra volume and instead demand the fastest possible sequential read speeds should opt for the Samsung 9100 Pro 1TB. Choosing between these two drives depends entirely on whether your primary requirement is doubling your total storage footprint or maximizing the speed of your data operations.